A door controller PCB is a printed circuit board (PCB) that controls a door or gates to limit access to a specific area.The door controller PCB typically consists of a printed circuit board with integrated circuit (IC) components, including transistors, capacitors, resistors, and other components, Door controller PCB may also include additional features such as a keypad, sensors, relays, and other components, Door controller PCB is usually connected to an access control system, which allows users to control access to a specific area.